68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
// Copyright (C) 2015 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Utility module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#pragma once
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#ifndef NAZARA_GUILLOTINEIMAGEATLAS_HPP
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#define NAZARA_GUILLOTINEIMAGEATLAS_HPP
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#include <Nazara/Prerequesites.hpp>
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#include <Nazara/Core/GuillotineBinPack.hpp>
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#include <Nazara/Utility/AbstractAtlas.hpp>
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#include <Nazara/Utility/AbstractImage.hpp>
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#include <Nazara/Utility/Image.hpp>
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#include <memory>
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#include <vector>
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class NAZARA_UTILITY_API NzGuillotineImageAtlas : public NzAbstractAtlas
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{
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public:
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NzGuillotineImageAtlas();
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virtual ~NzGuillotineImageAtlas();
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void Clear();
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void Free(NzSparsePtr<const NzRectui> rects, NzSparsePtr<unsigned int> layers, unsigned int count);
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NzGuillotineBinPack::FreeRectChoiceHeuristic GetRectChoiceHeuristic() const;
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NzGuillotineBinPack::GuillotineSplitHeuristic GetRectSplitHeuristic() const;
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NzAbstractImage* GetLayer(unsigned int layerIndex) const;
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unsigned int GetLayerCount() const;
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nzUInt32 GetStorage() const;
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bool Insert(const NzImage& image, NzRectui* rect, bool* flipped, unsigned int* layerIndex);
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void SetRectChoiceHeuristic(NzGuillotineBinPack::FreeRectChoiceHeuristic heuristic);
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void SetRectSplitHeuristic(NzGuillotineBinPack::GuillotineSplitHeuristic heuristic);
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protected:
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struct Layer;
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virtual NzAbstractImage* ResizeImage(NzAbstractImage* oldImage, const NzVector2ui& size) const;
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bool ResizeLayer(Layer& layer, const NzVector2ui& size);
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struct QueuedGlyph
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{
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NzImage image;
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NzRectui rect;
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bool flipped;
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};
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struct Layer
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{
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std::vector<QueuedGlyph> queuedGlyphs;
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std::unique_ptr<NzAbstractImage> image;
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NzGuillotineBinPack binPack;
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unsigned int freedRectangles = 0;
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};
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private:
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void ProcessGlyphQueue(Layer& layer) const;
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mutable std::vector<Layer> m_layers;
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NzGuillotineBinPack::FreeRectChoiceHeuristic m_rectChoiceHeuristic;
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NzGuillotineBinPack::GuillotineSplitHeuristic m_rectSplitHeuristic;
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};
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#endif // NAZARA_GUILLOTINEIMAGEATLAS_HPP
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